William h



(No Model.) 2 Sheets-Sheet 1.

- w. H. MITCHELL.

PLOW.

No. 540,678. Patented June 11, 18 95.

W/TNESSES: INVENTOR ATTORNEYS.

(No Model.)

L. L E m W m MP 3 W No.-; 540,678. Patented June 11, 1895.

INVENTOH ATTORNEYS.

WITNESSES.

UNITED STATES 7 PATENT ()FFICE.

WILLIAM H. MITCHELL, GLASGOW, KENTUCKY.

PLOW.

SPEGIFICATION forming part of Letters Patent No. 540,678, dated June 11,1895.

Application filed August 4, 1894. Serial No. 519,491. (Nomodeld Aleft-hand implement, and to provide a means" whereby a right andleft-hand point will be carried by the same mold board upon a singlestandard, and wherebyone land side will be used in connection with bothpoints, the plow being capable of use upon hill sides as well as uponlevel land. Therefore under such a construction the plow will be aright-hand one going in one direction and a left-hand one when travelingin an oppositedirection, the

change beingbro'ught about quickly by a re-'- versal of the beam; and afurther object of the invention is to provide a means whereby the plowbeam may be reversed upon the standard expeditiously and conveniently,and held in any position in which it is necessary to place it, by meansof a simple locking device under the complete control of the plowman.

The invention-consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification,

in which similar figures and letters of reference indicate correspondingparts in all the views.

Figure 1 is a side elevation of the improved plow. Fig. 2 is anelevation of the plow,

viewed from the opposite side to that shown in Fig. 1. Fig. 3 is avertical section through the beam, the standard, the moldboard, andlandside, the said section being taken about centrally through thestandard, landside, and moldboard. Fig.4 is a rear elevation of thestandard. Fig. 5 is a plan view of the standard. Fig. 6 is a bottomplanview'of the turn table adapted for attachment to the plowbeam. Fig.7 is a'plan view of the moldboard. Figs. 8 and 9 are plan views of thepoints separated from the moldboard, and Fig. 10 is a plan view of thelandside.

In carrying out the invention the mold board A is made double; that isto say, the mold board is provided-with a concaved lower central edge10, and a substantially similarly shaped upper edgell, while the endsurfaces of the mold board are provided with a substantially triangularextension or nose 12, lo

cated preferably nearer the lower than the upper edge of the mold board,and the upper sideline of each nose instead of being straight is curvedin an inwardly direction, the curved lines extending'nearly to the upperedge of the share, as shown in Fig. 6. The lower side line ofeachnose'ispractically straight, and extends downwardly and inwardly,meeting the ends of the lower concavity 10.

A point B is adapted for attachment to each end of the mold board, andto that end the inthus formed at the inner end of each point are fittedto the concaved and straight surfaces at the sides of the nose, wherebythe upper inner edges of each pointwill virtually form a continuation ofthe upper end surfaces of the mold board; but preferably the lower inneredges of the points are made to stop short of the lower end surfacesproper of the .mold board, as shown in Fig. 1. Thus it will 'be observedthat this mold board is a double one, and is provided witha point ateach end, one being adapted for right-hand and the other for left-handplowing.

The standard 0 adapted to carry and support the combined double moldboard and points, is shown best in Figs. and 5. This standard at itsupper end is formed in the nature of a circular table 14, the said tablebeing provided upon its upper face with a concentric rib 15. A shortdistance below the table the standard is practically straight whenviewed from the edge, but is more or less dished when viewed from theside, and the upper portion of the standards meets a bifurcated body 16,thesaid bodybeing somewhat U-shaped, comprising two members 16 ening rib17, which extends downward from the table ll ina comparatively straightline, and is then carried in opposite directions along the centralsurface of the members 16 and 16 terminating at a point short of thelower edges of the said members; and the ribs at their lowerterminations extend transversely across said members forming shouldersand below said shoulders seats, the bottoms and lower lateral edges ofsaid seats being arranged in planes at angles to one another as will beclearly seen from the drawings. The lower edges of the members of thestandard are inclined upwardly and outwardly in opposite directions,whereby the said lower edges are at an acute angle to a line drawnvertically through the center of the standard when the standard is heldin a true upright position, or is placed as shown in Fig. 4.

The land side D is shown in detail in Fig. 10, and this land sidecomprises two members 17 and 17, which while the land side is preferably in one piece are at angles to one another, forming substantially awide V in general contour. In assembling these parts the mold board andthe points are attached to the front of the concaved face or side of thebody portion of the standard, and the members of the land side at theirouter ends are secured in the seats at the back of the standard innmediately below the transverse terminals of the rib 17, or at anequivalent point. It will be thus observed that when one of the pointsis in engagement with the ground, a portion of the mold board will beheld aconsiderable distance above the ground, and likewise the oppositepoint, as shown in Fig. 1; and, as illustrated in Fig. 2, when one landside is in engagement with the ground the other is held free from suchengagement. Therefore, in plowing, the dirt in passing over the pointand over the double mold board at the lower end will pass off from themold board at its center, and beneath the upper portion of the moldboard and the upper point.

The lower edge of the double mold board is preferably beveled upon itsforward face in a downwardly direction, forming a tapering edge at itsbottom. This is done in order that the mold board may the more readilyclear itself from earth.

A bolt or the equivalent thereof, is passed through each nose portion ofthe mold board and into the standard; while a single bolt is alsopreferably used to attach each point to the standard, and the same boltsmay be likewise utilized as attaching mediums for the mold board.

The plow beam E, may be of any approved construction and is adapted forattachment to the standard at or near the heel, the heel portion of thebeam being provided with the usual handles 18. Since the plow beam mustbe held in practically a horizontal position, and as the standard willbe in either position of the mold board at an acute angle to the beam, abracket 19 is secured to the under face of the beam near the heel, thebottom of which bracket terminates in a turn table 20, having an anglecorresponding to thatof the table 14 of the standard. The bracket 19 issecured to the beam by means of bolts, or the equivalents thereof, andthe turn table 20 of the bracket is provided with an annular recess 21,adapted to receive the rib on the standard table 14:.

The standard table is provided with two apertures 22 and 23 producedtherein outside of the rib 15, the apertures being diametricallyopposite, and the bracket turn table 20 is provided with a singleaperture 24, which is adapted to register with either of the aperturesin the standard turn table; and the two tables are held to turn one uponthe other by passing through a central aperture in both a pivot pin 25,as shown in Fig. 3.

Upon one side of the plow beam a springcontrolled bolt 26, is located,adapted to be constantly in the aperture 24 of the bracket turn tableand capable of entering either of the apertures 22 or 23 in the standardturn table as the beam is reversed; and this springcontrolled bolt isoperated preferably through the medium of an elbow lever 27, fulcrumcdupon the beam, and a link 28, which leads through a suitable guidelocated upon the handle, preferably at the right-hand side thereof.

Thus it will be observed that this plow may be used as a right-hand plowwhen going in one direction, and a left-hand plow when proceeding in anopposite direction, and that the change from right to left may beaccomplished by disengaging the bolt 26 from the standard table,reversing the beam, and throwing the point that was elevated to theground, and carrying the point that was formerly worked to an upperposition; and when the beam has been reversed the bolt is released andwill lock the beam firmly to the standard through the medium of itsbracket. The upper extensions of the points B are preferably providedwith up and down grooves in their back faces to receive edges of thestandard 0, whereby the points are rendered steady.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a plow, a shank having bifurcations provided atpoints just above their lowerends with transverse shoulders wherebyseats are formed below the shoulders, and a land-side comprising twomembers set at angles to one another, each member having one end securedin the seat in one bifurcation of the shank, substantially as set forth.

2. In a plow, the combination of a shank, a double mold board carriedthereby and provided with a point at each end, a land-side of angularconstruction, a circular table arranged on top of the shank in a planeat right angles to the axis thereof, a plow beam, a bracket secured tothe under side thereof and provided with a circular table arranged in amovable link having one end connected to the [0 other arm of the elbowlever and its other arm, extending down and guided on the bandle,substantially as set forth.

WILLIAM H. MITCHELL.

Witnesses:

SETH WILLIAMS, THOMAS ANDERSON.

